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CompletedNCT06593847ETC2Updated Dec 18, 2025

Multisite Virtual Reality Intervention for Speech Anxiety

An interventional study of Single-session VR exposure intervention in Public Speaking and Speech Anxiety, sponsored by Boston University Charles River Campus. Completed at 13 sites in 5 countries. Open to participants aged 18 Years to 70 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-12-18.

Sponsored by Boston University Charles River Campus · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
1,542
Allocation
Not applicable
Ages
18 Years to 70 Years
Sex
All
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Study summary

Exposure-based cognitive behavior therapy is an efficacious treatment for speech anxiety and has been delivered effectively in a virtual reality (VR) environment. The present multicenter study (conducted through the Exposure Therapy Consortium) is designed to evaluate whether trait versus state positive affectivity is a more effective predictor of exposure therapy outcomes. Further, the investigators will examine whether the predictive significance of trait positive affectivity can be accounted for by examination of baseline levels of self-efficacy, hope, and optimism.

Read the detailed description

The goal of this multicenter clinical trial is to examine predictors of VR exposure therapy outcomes for college students with public speaking anxiety following a positive or negative mood induction. The overarching aim of the present study is to evaluate whether trait versus state positive affectivity is a more effective predictor of exposure therapy outcomes. Further, the investigators will examine whether the predictive significance of trait positive affectivity can be accounted for by examination of baseline levels of self-efficacy, hope, and optimism. State affect is manipulated at an experimental level with affect induction procedures; trait positive affectivity is measured at baseline.

The study involves three phases: (1) initial screening, (2) in-person assessment and brief exposure intervention for a subset of participants with elevated public speaking anxiety, and (3) a one-week follow-up assessment conducted online. Students who choose to participate and screen high on a public speaking anxiety scale will be assigned to a positive or negative mood induction condition prior to undergoing VR-based exposure therapy. Public speaking and social anxiety outcomes are measured immediately post-intervention and one week later. The one-week follow-up assessment represents the primary outcome.

02

Conditions studied

  • Public Speaking
  • Speech Anxiety

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03

In context

Speech

67 studies on the registry are indexed under Speech; 46 are open to participants now.

This study's enrollment of 1,542 is above the median of 60 across 56 interventional studies indexed under Speech.

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Lead sponsor

Boston University Charles River Campus is the lead sponsor of 154 studies on the registry; 30 are open to participants now.

Of its 14 completed or terminated interventional studies of FDA-regulated products, 8 (57%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 70 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Self-report of 18 - 70 years of age
  • Current student at a participating University
  • Ability to read English to provide informed consent
  • Familiarity with a computer keyboard and mouse or a touch screen device (e.g. phone, tablet).
  • For Phase 2: speech anxiety scale score of ≥ 18 on the Personal Report of Communication Apprehension, Public Speaking Subscale (PRCA-PS)

Exclusion criteria

Exclusion Criteria:

  • Previous participation (i.e., no participant may take the survey more than once).
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Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
1,542 participants (actual)

Study arms

  • Other
    Positive or Negative Mood Induction via film clips

    VR exposure is the only intervention, but the VR intervention is conducted following either positive or negative mood induction.

    Behavioral: Single-session VR exposure intervention

Interventions

  • BehavioralSingle-session VR exposure intervention

    VR exposure is the only intervention, but the VR intervention is conducted following either positive or negative mood induction.

06

What researchers measure

Primary outcomes

  1. Public Speaking Anxiety

    Assessed using the Personal Report of Communication Apprehension, Public Speaking Subscale (PRCA-PS). Scores range from 6 to 30, with higher scores associated with higher public speaking anxiety.

    Time frame: One week follow-up assessment

Secondary outcomes

  1. Valence

    Self-report measure of how participant feels about having to give a speech

    Time frame: One week follow-up assessment

  2. Assessed using the Social Phobia Inventory (SPIN)

    Assessed using the Social Phobia Inventory (SPIN). Scores range from 0-68, with higher scores indicating greater social phobia.

    Time frame: One week follow-up assessment

  3. Public Speaking Anxiety

    Assessed using the Personal Report of Communication Apprehension, Public Speaking Subscale (PRCA-PS). Scores range from 6 to 30, with higher scores associated with higher public speaking anxiety.

    Time frame: Post-treatment assessment immediately after the intervention

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Study locations

13 sites
  • University of Arizona
    Tucson, Arizona 85721, United States
  • Southern Illinois University
    Carbondale, Illinois 62901, United States
  • Tufts University
    Boston, Massachusetts 02155, United States
  • Boston University
    Boston, Massachusetts 02215, United States
  • Albright College
    Reading, Pennsylvania 19604, United States
  • University of Texas at Austin
    Austin, Texas 78712, United States
  • Western Sydney University
    Penrith, New South Wales 2751, Australia
  • University of New South Wales
    Sydney, New South Wales 2052, Australia
  • Curtin University
    Bently, Western Australia 6102, Australia
  • University of Hong Kong
    Pokfulam, Hong Kong, China
  • Philipps-Universität Marburg
    Marburg, Hesse 35037, Germany
  • Erasmus University
    Rotterdam, South Holland 3062 PA, Netherlands
  • Utrecht University
    Utrecht, 3584 CS, Netherlands
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References and documents

Individual participant data

Plan to share: Yes — Data will be posted on the Open Science Foundation site.

Supporting information: Study protocol

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 18, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT06593847
Lead sponsor
Boston University Charles River Campus
Collaborators
University of Texas at Austin, Curtin University, Erasmus University Rotterdam, National University of Singapore, Southern Illinois University, Tufts University, The University of New South Wales, University of Western Sydney, University of Arizona, The University of Hong Kong, Philipps University Marburg, Albright College, Utrecht University
Responsible party
Sponsor
First posted
Sep 19, 2024
Start date
Oct 8, 2024
Primary completion
Jul 23, 2025
Completion
Jul 23, 2025
Last update
Dec 18, 2025

Study contacts

Michael Otto, PhD
principal investigator · Boston University

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2025. You cannot join it, but the record below documents what was studied.

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